Why only one Designer

Sure - so that your product could be distinguished from products made by other designers.

But what if you were the only person who had ever learned, or ever would learn. how to make clothes? Is there really still a need for you to "brand" your products? I mean, just the fact that they're clothes would be proof that you made them, because you're the only tailor who has ever existed and will ever exist.

So, unless you're asserting a universe of polytheism, where gods are competing amongst themselves to produce organisms, there's no reason to expect the singular creator of all life on Earth to have signed anything.

Well, not every living thing requires DNA. There are RNA viruses, for instance, that have no DNA at all.

Not always. Hardly ever, in fact - ecologies are much more resilient than you've been led to believe. I mean, over Earth's history, more than 99% of all the species that have ever lived have gone extinct; if the removal of an element of an ecology was enough to collapse the entire ecosystem, there wouldn't be a surviving ecosystem on Earth. Countless billions of species have gone extinct without a trace, but ecosystems survive. Some niches are just too good to go unfilled.

Well, it does matter, because you've specified a common designer. That can only be consistent with one designer - if one designer designed this, and another designer designed that, then this and that can't be said to have a common designer.

Dean Kamen invented a kind of kidney dialysis machine, the Segway motor scooter, and a thought-controlled prosthetic arm.

Could you identify Dean Kamen's signature in these three products? Please be specific.

I would say that the sweeping differences indicate multiple designers - clearly the guy who did "plants" wasn't on the "mammals" team.

Not at all. As an immediate and more approachable example of common design of disparate functions, it's entirely relevant and probative.

You wouldn't just be trying to do your standard dodge and run, would you, Jon? I mean, why do you even bother replying to my posts if you're going to immediately turn tail and run from the discussion?

I mean, really. What was your intent when you replied to my post? It wasn't directed at you. Don't get me wrong, I'm not saying you can't reply, but surely it wasn't your intention to beg out of the discussion after two posts, was it?

They sure do. But why then do whales have pelvises, but sharks don't? A pelvis on a whale is like finding a differential on a submarine - utterly without purpose, indicative that we're looking at a "carryover" from a terrestrial predecessor.

Common function explains some physical commonalities between organisms. But common descent explains all physical commonalities between organisms, including the ones that don't make any sense, like pelvises on whales.

No, we're talking about designs in general. Remember? When SavageD got us on this subject by talking about putting his label on clothes that he designed?

Are clothes alive, Jon?

Could that maybe be because your question is retarded and makes no sense?

Tell me, Savage, when did you "learn" to grow hair?

Well, how are you able to grow hair if you never learned how?

I'm not required to eliminate anything simply because you, in your ignorance, find it "preposterous." Like every other feature of organisms, the way that organisms utilize DNA came about as a result of random mutation and natural selection. These are mechanisms that have been repeatedly observed to produce intricate complexity in the natural world. Divine intervention has never been observed to produce anything at all.

If you would like to restrict your interolocutors to a smaller number, you need only nominate whoever you'd like to interact with. Informally, in this thread you could simply ask those you don't nominate not to reply, or if you'd like that to be enforced, you can open a Great Debate topic with any individual or individuals you choose, provided they agree.

There's certainly more evolutionists here - it's a science forum, after all, where dishonesty and cheating are not allowed. Most creationists find it impossible to participate under such conditions. Regardless, if you're feeling overwhelmed you can simply say so and nominate the people you'd like to continue participating with.